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ISASecure and IEC 62443, explained with the numbers

What each certification program actually evaluates, how the security levels and device types change the scope, and where the common points of confusion come from — written by the assessors who run these evaluations.

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Security levels10Tiers (Core / Advanced)5Device & component types9Assessment streams6Testing & verification11Evidence & artifacts16Independent testing5Maturity levels4Sampling1Scope & boundaries16Surveillance & maintenance4Certification process20Common component constraints (CCSC)1Cost & effort3Comparisons4Roadmaps & readiness1
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ACSSADeep dive

How ACSSA assesses IEC 62443-2-1 requirements: 89 composite verdicts from four standards

How ISASecure ACSSA folds IEC 62443-2-4, 3-2 and 3-3 results into one composite verdict per IEC 62443-2-1 requirement, and what makes a verdict fail.

Sep 8, 20269 min readRead

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